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Description:
“Precision Illumination with the 70×52mm Rectangular LED Light Bar”
Introduction
The LED light bar has become a cornerstone of modern display and indicator technology, offering versatility, brightness, and energy efficiency. Among the many variants, the rectangular 1-bar LED light bar (70×52mm) stands out for its superior illumination area, uniform light distribution, and durability. Whether it’s used in industrial control panels, automotive dashboards, or professional-grade instruments, this component embodies reliability and precision.
As part of the broader LED bar graph family, this rectangular module is designed to deliver powerful, consistent lighting across wider surfaces. It’s engineered for high visibility, even under bright ambient conditions, making it an ideal choice for engineers and manufacturers in the electronics industry. Additionally, its compatibility with LED bar display systems allows seamless integration into digital interfaces, enhancing readability and operational aesthetics.
Features of the Rectangular 70×52mm LED Light Bar
The rectangular LED light bar is known for its technical sophistication and high-performance design. Below are the defining features that make this component a preferred solution for modern electronic and industrial systems:
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Large Illumination Area (70×52mm):
The broad surface offers excellent visibility, ideal for displays requiring significant light coverage without hot spots. -
High Brightness and Uniform Light Output:
Each LED light bar is engineered to emit bright, evenly distributed light, providing clear visual indicators for data readouts, meters, and signals. -
Long Lifespan and Reliability:
Rated for up to 50,000 operating hours, it ensures years of continuous service in demanding conditions. -
Low Power Consumption:
Its efficient design minimizes energy use, reducing heat output and power costs over time. -
Wide Viewing Angle:
Ensures legibility from multiple directions—perfect for equipment panels and large-scale displays. -
Durable Encapsulation:
Built from high-quality epoxy resin and thermally stable materials, the LED bar display is resistant to shocks, vibrations, and environmental stress. -
Customizable Color Options:
Available in multiple colors (red, green, yellow, blue, or white) for varied visual signaling needs. -
Easy Mounting and Integration:
The module’s design supports PCB soldering or enclosure installation with minimal engineering effort.
Applications of the LED Light Bar
The LED light bar (rectangular 70×52mm) serves a multitude of industrial and consumer applications. Its flexibility, combined with a large illumination area, makes it indispensable in systems where clear, direct visibility is crucial.
1. Industrial Automation Panels
Used to indicate power status, system errors, and process values. Engineers prefer LED bar displays due to their precision and energy efficiency, reducing downtime caused by unclear signals.
2. Audio and Sound Equipment
In professional mixers and amplifiers, LED bar graphs provide real-time audio level visualization, ensuring smooth operation in recording and broadcasting environments.
3. Automotive Instrumentation
Used in dashboards, speedometers, and fuel indicators, the rectangular LED light bar enhances visibility while maintaining a sleek design aesthetic.
4. Medical and Laboratory Equipment
Its stable illumination and low power consumption make it suitable for diagnostic devices where precision and long-term reliability are essential.
5. Smart Appliance Interfaces
The LED light bar adds visual elegance and user-friendly feedback for high-end consumer products like kitchen appliances or home automation panels.
6. Security and Surveillance Systems
Provides visual indicators for motion sensors, power lines, and data activity, improving monitoring efficiency.
7. Energy and Power Equipment
Integrated into control units to display battery levels, voltage conditions, or charge indicators using Bar Graph Arrays for a compact, intuitive interface.
Benefits of the 70×52mm LED Light Bar
The rectangular LED light bar offers a combination of aesthetic appeal, performance, and functional reliability. Here’s why it’s trusted across various industries:
-
Exceptional Visibility:
The wide light-emitting surface ensures clear, uniform brightness, even from a distance. -
Energy Efficiency:
Consumes minimal power, making it an eco-friendly choice for continuous-operation devices. -
Enhanced Durability:
Resistant to moisture, vibration, and thermal fluctuations, suitable for both indoor and outdoor equipment. -
Compact Yet Powerful:
Its sleek design allows integration into confined spaces without compromising light intensity. -
Versatile Use Cases:
Compatible with various Bar Graph Arrays and adaptable to both analog and digital control systems. -
Low Maintenance:
Long operational life reduces replacement frequency and maintenance downtime. -
Customizable Configuration:
Available in multiple colors and configurations, catering to both functional and design requirements.
Case Studies
Case Study 1: Industrial Control Systems (USA)
A manufacturing plant integrated the LED light bar into its production line monitoring panels. The 70×52mm rectangular design provided better visibility for process indicators, reducing operator errors by 25%. The uniform brightness also improved readability under strong factory lighting.
Case Study 2: Audio Equipment Displays (Germany)
A professional audio manufacturer adopted the LED bar graph for level indicators in studio mixers. The large illuminated area offered superior visual feedback for sound engineers, enhancing production accuracy and modernizing the design.
Case Study 3: Electric Vehicle Dashboards (Japan)
An EV manufacturer implemented the LED bar display for battery status visualization. The rectangular light bar’s consistent brightness and compact design aligned perfectly with the dashboard’s ergonomic layout, improving driver information delivery.
User Testimonials
“The brightness and stability of these LED light bars are outstanding,”
says James R., Senior Design Engineer at an automation company.
“We integrated them into our control panels, and the visual feedback has become much clearer for our operators.”
“Highly efficient and durable,”
notes Laura M., Product Developer in medical devices.
“We needed components that would work 24/7 without failure. The rectangular LED light bar has exceeded our expectations in terms of reliability and lifespan.”
“Sleek and modern appearance with excellent visibility,”
adds Daniel T., Audio Equipment Manufacturer.
“These LEDs helped our mixers stand out while delivering professional-level functionality.”
Design and Integration Tips
When incorporating a LED light bar into a circuit or enclosure, engineers should pay attention to performance optimization:
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Ensure Constant Current Supply:
Prevents overdriving LEDs and maintains consistent illumination. -
Use Thermal Management Solutions:
Add heat sinks or thermal vias to enhance component longevity. -
Maintain Proper Alignment:
Align LEDs in Bar Graph Arrays for symmetrical lighting and better display aesthetics. -
Apply Correct Polarity:
Verify connection points carefully to avoid damage to LED bar display modules. -
Opt for Protective Coatings:
Use moisture-resistant conformal coatings for outdoor or industrial environments.
Conclusion
The LED light bar (rectangular, 1 bar, 70×52mm) represents the perfect fusion of precision illumination, compact engineering, and durability. Whether used in industrial, automotive, or consumer applications, its energy efficiency and reliability make it a trusted choice among engineers and manufacturers alike.
By offering high brightness, stability, and design adaptability, this LED bar graph continues to redefine how visual indicators enhance system interfaces and product aesthetics. Its robust construction and long lifespan ensure dependable performance even in challenging conditions.
For projects requiring consistent brightness and minimal power usage, the LED light bar remains one of the most efficient and adaptable solutions available today.

Features
- Display Area Shape: Rectangular, providing a distinct and clear area for illumination.
- Display Area Number: Features a single display area.
- Reflector Dimensions: Measures 70*52mm in width.
- Uniform Light Emitting Area: Ensures consistent and even lighting across the display.
- Low Current Operation: Energy-efficient, reducing power consumption.
- Wide Viewing Angle: Allows the light to be easily visible from different angles.
- Easily Mounted on P.C. Boards: Designed for simple integration into electronic systems.
- Flush Mountable: Can be installed to align seamlessly with the surface.
- Excellent On/Off Contrast: Provides clear visibility when the LED is active or inactive.
- Can be Used with Panels and Legend Mounts: Versatile mounting options, suitable for various types of panels.
- Categorized for Luminous Intensity: Ensures consistent brightness across different units.
- Different Colors in One Unit Available: Offers flexibility in color choices, enhancing customization options.
- Standard: Black Face, White Segment: Classic appearance for easy identification and readability.
- RoHS Compliance: Manufactured in accordance with environmental and safety standards.
Applications
- Indicator Lights: Ideal for use as indicator lights in electronic, automotive, and electrical applications.
- Control Panels: Suitable for control panels in machinery, vehicles, and other equipment.
- Signal Lights: Applicable as signal lights in industrial settings, vehicles, or consumer electronics.
- Instrumentation Displays: Useful in displaying status or readings in instrumentation panels.
- Consumer Electronics: Can be integrated into consumer electronic devices for display or indication purposes.
- Safety and Emergency Equipment: Suitable for use in safety and emergency equipment as warning or status indicators.
- Information Displays: Effective in public areas or systems where compact, clear light displays are required.

Electrical-optical characteristics:
Package configuration & Internal circuit diagram
Obtain 3D specification files
To examine all 3D specifications, save the files to your local drive and open them with your 3D application.
Lens colors in 3D files are solely for visual representation; consult the Datasheet for accurate lens type and color information.
In the event of a mismatch, the dimensions in the datasheet take precedence over the 3D specifications.

All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.
Partno description:
Related Information
Applied for:




1. Application
The Seven Segment LED is widely applied for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Checking with BETLUX’s Sales in
advance for information on applications in which exceptional reliability is required, particularly
when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in
aviation, transportation, traffic control equipment, medical and life support systems and safety
devices).
2. Storage
The storage ambient for the Seven Segment LED should not exceed 30℃ temperature or 70% relative humidity.
For extended storage out of their original packaging, it is recommended that the Seven Segment LEDs be stored
in a sealed container with appropriate desiccant, or in a desiccator with nitrogen ambient.
3. Cleaning
Avoid using any unspecified chemical solvent to clean LED . For example, Trichloroethylene, Chlorosen, Acetone, and Diflon S3MC.
Any cleaning method can only be taken under normal temperature in one minute or less if it is required.
Use water to clean the Seven Segment LED if necessary under room temperature
dry it immediately after that.
4.Forming
Any unsuitable stress applied to the epoxy may break bonding wires in LED
Any forming on lead pin must be done before soldering, not during or after soldering.
Avoid applying any stress to resin in order to prevent the epoxy fracture and break on bonding wire.
While forming, please use a tie bar cut or equivalent to hold or bend the pin.
2mm from the base of resin is the minimum distance for the place bending the lead pin.
Avoid bending the lead pin at the same point twice or more.

Soldering
When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.
Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.
Recommended soldering conditions:
| IR Reflow Soldering (for SMD display) | Wave Soldering | Soldering Iron | |||
| Pre-Heat | 150-180°C | Pre-Heat | 100°C Max. | Temperature | 300°C Max. |
| Pre-Heat Time | 120sec Max. | Pre-Heat Time | 60sec Max. | ||
| Peak Temperature | 260°C Max. | SolderWave | 260°C Max. | Soldering Time | 3sec Max.(one time only) |
| Soldering Time | 10 sec Max. | Soldering Time | 5sec Max. | ||
Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED
ESD(Electrostatic Discharge)
Static Electricity or power surge will damage the LED.
Suggestions to prevent ESD (Electrostatic Discharge):
n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs
n All devices, equipment, and machinery must be properly grounded
n Work tables, storage racks, etc. should be properly grounded
n Use ion blower to neutralize the static charge which might have built up on surface of the LED’s
plastic lens as a result of friction between LEDs during storage and handling
ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current,
low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on”
and Vf of the suspect LEDs at low currents.
The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP
product.

LED dirve IC by Maxim Integrated
MAX6959 4½-Digit LED Display Driver
MAX6958 4½-Digit LED Display Driver
MAX6955 7-, 14-, 16-Segment LED Display Driver
MAX6956 LED Static Display Driver and I/O Port
MAX6954 7-, 14-, 16-Segment LED Display Driver
MAX6952 5 x 7 Matrix LED Display Driver
MAX6957 LED Static Display Driver and I/O Port
MAX6950 5-Digit LED Display Driver
MAX6951 8-Digit LED Display Driver
ICM7212 4-Digit LED Driver
ICM7212A 4-Digit LED Driver
ICM7212AM 4-Digit LED Driver
ICM7212M 4-Digit LED Driver
ICM7218A 8-Digit LED Driver
ICM7218B 8-Digit LED Driver
ICM7218C 8-Digit LED Driver
ICM7218D 8-Digit LED Driver
MAX7221 8-Digit LED Display Driver
MAX7219 8-Digit LED Display Driver
When selecting power for LED systems, it’s essential to understand several key parameters to ensure safe operation, longevity, and optimal performance. Here are some steps and considerations for LED power selection:
- Determine the Forward Voltage (Vf) of the LED(s):
Each LED has a forward voltage, which is the voltage at which the LED operates when the current is flowing through it. This value can typically be found in the LED’s datasheet.
- Determine the Forward Current (If) of the LED(s):
The forward current is the current at which the LED is designed to operate. Running an LED at higher than its rated current can reduce its lifespan and increase the heat it produces.
- Decide on the Configuration:
Series Configuration: When LEDs are connected in series, the forward voltages add up, but the current remains the same.
Parallel Configuration: When LEDs are connected in parallel, the forward voltage remains the same, but the currents add up. This configuration can be risky because if one LED fails or has a slightly lower forward voltage, it can cause the other LEDs to draw more current.
Calculate Total Power Requirements:
Power (W) = Total Forward Voltage (V) x Total Forward Current (A)
For example, if you have three LEDs connected in series, each with a forward voltage of 3V and a forward current of 20mA, the total power requirement would be:
Power = (3V + 3V + 3V) x 20mA = 9V x 0.02A = 0.18W
- Select an Appropriate Power Supply:
- Voltage Rating: The power supply voltage should match or slightly exceed the total forward voltage of your LED configuration.
- Current Rating: The power supply’s current rating should meet or exceed the total forward current of your LED configuration.
- Safety Margin: It’s a good practice to select a power supply that can provide at least 20% more power than your calculated requirement. This ensures the power supply isn’t operating at its maximum capacity, which can extend its life and ensure safer operation.
- Consider Additional Features:
- Dimming Capability: If you want to control the brightness of your LEDs, choose a power supply with dimming capabilities.
- Overcurrent and Overvoltage Protection: To protect your LEDs, select a power supply with built-in protection mechanisms.
- Thermal Management: Ensure that the power supply has adequate cooling, especially if it will be enclosed or in a location with limited airflow.
- Regulation and Efficiency:A power supply with good regulation will maintain a consistent voltage output despite variations in the load. High efficiency ensures minimal power is wasted as heat.
- Physical Size and Form Factor:Depending on where you plan to place the power supply, its size and shape may be critical factors.
In summary, when selecting power for LED systems, understanding your LED’s requirements and the configuration you plan to use is essential. Then, pick a power supply that meets those needs with some added safety margin, keeping in mind any additional features or constraints relevant to your project.
Here are some well-regarded brands in the industry:
- Mean Well: One of the most recognized brands in the LED power supply industry, Mean Well offers a wide range of products suitable for both indoor and outdoor applications. Their units often come with features like overcurrent protection, dimming capabilities, and high efficiency.
- Tridonic: A global leader in lighting technology, Tridonic offers LED drivers and power supplies that cater to various lighting solutions, from simple setups to advanced smart lighting systems.
- Philips Advance Xitanium: Philips is a well-known brand in the lighting industry, and their Xitanium series of LED drivers are known for reliability and performance. They cater to both indoor and outdoor LED applications.
- Osram: Another giant in the lighting industry, Osram offers a range of LED drivers and power supplies suitable for various applications, including architectural and street lighting.
- LIFUD: Specializing in LED drivers, LIFUD is known for its high-quality products that cater to both commercial and residential LED lighting solutions.
- MOSO: This brand offers a variety of LED drivers, especially for outdoor and industrial applications. Their products are known for durability and performance.
- TDK-Lambda: With a history in power electronics, TDK-Lambda offers a range of power supplies and LED drivers suitable for various applications, emphasizing reliability and advanced features.





